# 3 unknowns using Cramers Rule Calculator

## Enter equation 1:

a =  b =   c =   d =

## Enter equation 2:

e =  f =   g =   h =

## Enter equation 3:

i =  j =   k =   l =

### How does the 3 unknowns using Cramers Rule Calculator work?

Solves for 3 unknowns with equations in the form ax + by + cz = d using Cramers Method.
This calculator has 12 inputs.

### What 4 formulas are used for the 3 unknowns using Cramers Rule Calculator?

1. Δ = (a * f * k) + (b * g * i) + (c * e * j) - (c * f * i) - (a * g * j) - (b * e * k)
2. xdet = (d * f * k) + (b * g * l) + (c * h * j) - (c * f * l) - (d * g * j) - (b * h * k)
3. ydet = (a * h * k) + (d * g * i) + (c * e * l) - (c * h * i) - (a * g * l) - (d * e * k)
4. zdet = (a * f * l) + (b * h * i) + (d * e * j) - (d * f * i) - (a * h * j) - (b * e * l)

For more math formulas, check out our Formula Dossier

### What 5 concepts are covered in the 3 unknowns using Cramers Rule Calculator?

3 unknowns using cramers rule
cramer
equation
a statement declaring two mathematical expressions are equal
unknown
a number or value we do not know
variable
Alphabetic character representing a number